GMAT Critical Reasoning (CR) | Re: Under normal conditions, a single AA NiCd battery will power

Under normal conditions, a single AA NiCd battery will power a smoke detector for a minimum of 60 days. The current county regulation requiring all hospitals to replace the AA NiCd batteries in their smoke detectors every 45 days is both illogical and unduly harms the environment. The current replacement schedule could safely be extended to 60 days thereby decreasing the number of environment-damaging batteries requiring disposal.

Which of the following, if true, would most seriously weaken the
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